DHG-9425 Large-Capacity 420L Mechanical Convection Dry Oven with Digital Temperature Controller
The DHG-9425 oven is engineered to meet demanding laboratory drying, material storage, wax melting, and heat sterilization needs where uniform and reliable heating is critical. Its large 420-liter stainless steel chamber accommodates bulky samples or multiple batches simultaneously, supporting efficient workflows in research and industrial labs. The oven’s mechanical convection system circulates heated air evenly throughout the chamber, ensuring consistent temperature distribution and reproducible results across all shelf positions.
Equipped with a digital temperature controller, the DHG-9425 maintains temperature stability within ±1°C and uniformity within ±2°C at 100°C, enabling precise thermal processing up to a maximum continuous operating temperature of 250°C. Safety is enhanced by an independent over-temperature protection sensor that automatically cuts power if overheating occurs. The chamber includes three stainless steel shelves, each capable of supporting approximately 10 kg, allowing flexible sample arrangement without compromising airflow.
Key Features
- 420 L stainless steel interior chamber with dimensions 640 × 585 × 1355 mm (25.2″ × 23.0″ × 53.3″)
- Mechanical convection heating for uniform air circulation and temperature distribution
- Digital temperature controller with ±1°C accuracy and ±1.0°C stability
- Maximum continuous operating temperature of 250°C with 10°C/min heating rate
- Three stainless steel shelves included, each supporting ~10 kg load
- Built-in over-temperature protection sensor for automatic power cutoff
- Compatible with 208–240 VAC, 50/60 Hz, single-phase power supply requiring a 30 A circuit breaker
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | DHG-9425 |
| Product Type | Large-Capacity Mechanical Convection Laboratory Oven |
| Chamber Volume | 420 L |
| Chamber Dimensions (L × W × H) | 640 × 585 × 1355 mm (25.2″ × 23.0″ × 53.3″) |
| Interior Material | Stainless Steel |
| Shelves Included | 3 stainless steel shelves |
| Shelf Load Capacity | Approx. 10 kg per shelf |
| Maximum Operating Temperature | 250°C continuous |
| Temperature Controller | Digital, ±1°C accuracy |
| Temperature Stability | ±1.0°C |
| Temperature Uniformity | ±2°C at 100°C |
| Heating Method | Mechanical convection |
| Power Consumption | 3,500 W (3.5 kW) |
| Voltage & Frequency | 208–240 VAC, 50/60 Hz, single-phase |
| Circuit Breaker | 30 A required |
| Weight | Approx. 170.1 lb (77.2 kg) |
Typical Applications
- Laboratory drying of samples and materials
- Storage of heat-stable laboratory materials
- Wax melting processes requiring controlled heating
- Heat-based sterilization and heat treatment of labware and instruments (validate protocols before use)
Configuration & Operating Notes
- Do not exceed the maximum continuous operating temperature of 250°C to avoid damage.
- Use a 208–240 VAC, single-phase power supply with a 30 A circuit breaker as specified.
- Load shelves evenly, not exceeding approximately 10 kg per shelf, to maintain proper airflow and heating uniformity.
- For precise temperature control and documentation, verify chamber temperature using a temperature calibration kit and adjust controller offset accordingly.
- Confirm material compatibility with mechanical convection heating at selected temperatures before processing.
- Over-temperature protection sensor provides automatic power cutoff in case of overheating.
